英语翻译Because ANOVA showed no statistical signi?cance in thevariation of the means of the heavy metal concentrations byquadrant concentrations at the α = 0.01 and 0.05 level,the over-all mean concentration for each metal from this study in Fuh
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英语翻译Because ANOVA showed no statistical signi?cance in thevariation of the means of the heavy metal concentrations byquadrant concentrations at the α = 0.01 and 0.05 level,the over-all mean concentration for each metal from this study in Fuh
英语翻译
Because ANOVA showed no statistical signi?cance in the
variation of the means of the heavy metal concentrations by
quadrant concentrations at the α = 0.01 and 0.05 level,the over-
all mean concentration for each metal from this study in Fuhais
was compared with the average concentration found in dry dust
deposition,which was measured at a remote reference site.The
concentrations of all of the heavymetals were found to be higher
on the rooftops in Fuhais than in the reference site as shown in
Figure 3.The variations in themean values of the concentrations
of the metals (Pb,Cu,Zn,Ni,Fe,and Mn) in the dust between
Fuhais and the remote reference site locations were found to
be statistically signi?cant at a level of α = 0.05 (P = 0.017,
Pb; 0.015,Cu; 0.011,Zn; 0.006,Ni; 0.010,Fe; 0.003,Mn),
and differences for Al,Cr,and Co were signi?cant at a level of
α = 0.10 (0.06,0.10 and 0.09,respectively).
The dry deposition samples were analyzed for crystalline
minerals content using x-ray diffraction.The analyses of these
minerals were estimated fromthe height of the peaks.Dolomite,
calcite,quartz,and gypsum were the predominant minerals as
174 A.H.Ziadat et al.
shown in the difractogram(Figure 4).All of the previouslymen-
tioned minerals can be components of the cement factory emis-
sion rather than natural sources as these minerals are used for
cement production.
Conclusions
The results of this study indicate that the concentration of the
heavy metals in the dust collected from residential rooftops in
the city of Fuhais is higher (for all metals measured except Mo)
than the heavy metal concentrations found in a remote refer-
ence site.The overall high concentrations of the heavy metals
on the rooftop dust in Fuhais are representative of the cur-
rent cement plant operations that dominate the air quality in
the city.A signi?cant difference in Pb and Cu concentrations
were found in the northwest quadrant of the city,are represen-
tative of the traf?c pattern from and to the cement industry.The
mineral constituents of some dry deposition samples showed
the presence of gypsum,dolomite,calcite,and quartz,which
indicates the contribution of cement factory on the dry deposi-
tion of the area.All these results of the present study suggested
that dry deposition samples from Fuhais city are strongly in?u-
enced by emission from the cement factory rather than natural
sources.
Acknowledgment
The authors thankDr.MaherHijazeen and theNaturalRecourses
Authority in Jordan for conducting the x-ray diffraction analysis
at their laboratory.
英语翻译Because ANOVA showed no statistical signi?cance in thevariation of the means of the heavy metal concentrations byquadrant concentrations at the α = 0.01 and 0.05 level,the over-all mean concentration for each metal from this study in Fuh
方差分析显示没有统计 signi 因为吗?在 cance,
由重金属含量的方式的变化
象限浓度,α = 0.01 和 0.05 级别,过-
都是从这项研究在 Fuhais 中的每个金属含量
被较干燥的尘土中发现的平均浓度
沉积,以引用远程站点.在
在 heavymetals 的所有的浓度找高
中比在参考网站中所示的 Fuhais 天台
图 3.themean 值中的浓度的变化
金属 (铅、 铜、 锌、 镍、 铁和锰) 之间的尘土中的
发现 Fuhais 和引用远程站点位置
统计上是 signi 不一个级别的 α = 0.05 (P = 0.017,
铅 0.015,铜 0.011,锌 ; 0.006,镍 ; 0.010,铁 ; 0.003,锰),
·,铬,和公司的区别是 signi 不能的级别
α = 0.10 (0.06、 0.10 和 0.09,分别).
干沉降样本进行分析的结晶
内容使用 x 射线衍射的矿物.这些分析
矿物,估计的从高度的峰值.白云岩,
方解石、 石英和石膏,作为主要矿物
174 A.H.Ziadat et al.
在 difractogram(Figure 4) 中所示.所有的 previouslymen
tioned 矿物质可以是组件的水泥厂埃米-
使用研究,而不是为这些矿物质的自然源
水泥生产.
结论
这项研究的结果显示,浓度,
在住宅屋顶收集尘土中重金属
Fuhais 的城市为高 (适用于所有的金属测定钼除外)
发现一个远程引用中的重金属含量比-
简化站点.整体高的重金属含量
在 Fuhais 中的天台屋尘上有代表性的恶棍-
租为主的空气质素的水泥厂业务
这座城市.一个 signi 不能中铅、 铜浓度差
这座城市的西北象限中发现,是 represen-
在 traf 的咨询呢?c 模式和水泥业.在
矿物成分的某些干沉降示例显示
石膏、 白云石、 方解石,石英,是否存在,
指示对干 deposi-水泥厂的贡献
区的 tion.所有这些结果,本研究建议
从 Fuhais 城市干沉降样本是强烈的呢?u-
enced 由该水泥厂,而不是自然的排放
源.
认收书
作者 thankDr.MaherHijazeen 和 theNaturalRecourses
当局在约旦进行 x 射线衍射分析
在他们的实验室.